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https://github.com/antonblanchard/microwatt.git
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8e0389b973
This replaces the simple_ram_behavioural and mw_soc_memory modules with a common wishbone_bram_wrapper.vhdl that interfaces the pipelined WB with a lower-level RAM module, along with an FPGA and a sim variants of the latter. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
51 lines
835 B
VHDL
51 lines
835 B
VHDL
library ieee;
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use ieee.std_logic_1164.all;
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use ieee.numeric_std.all;
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library work;
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use work.common.all;
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use work.wishbone_types.all;
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entity core_tb is
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end core_tb;
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architecture behave of core_tb is
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signal clk, rst: std_logic;
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-- testbench signals
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constant clk_period : time := 10 ns;
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begin
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soc0: entity work.soc
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generic map(
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SIM => true,
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MEMORY_SIZE => 524288,
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RAM_INIT_FILE => "main_ram.bin",
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RESET_LOW => false
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)
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port map(
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rst => rst,
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system_clk => clk,
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uart0_rxd => '0',
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uart0_txd => open
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);
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clk_process: process
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begin
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clk <= '0';
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wait for clk_period/2;
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clk <= '1';
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wait for clk_period/2;
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end process;
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rst_process: process
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begin
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rst <= '1';
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wait for 10*clk_period;
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rst <= '0';
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wait;
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end process;
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jtag: entity work.sim_jtag;
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end;
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